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水稻免耕抛秧技术具有高产稳产、轻型节本、安全环保等优点,如何选择操作方便、经济有效、安全环保的灭生性除草剂是推广普及该项技术中需要研究解决的一个重要问题。试验结果表明,目前推荐使用的灭生性除草剂———20%克无踪、10%草甘膦、农民乐747均可取得理想的除草灭茬效果和显著的节本增收作用。内吸型除草剂的灭茬效果优于触杀型除草剂,但触杀型除草剂见效快速,可因地制宜选择使用。免耕抛秧比翻耕抛秧每公顷每年直接节约的翻耕费用和增产的稻谷,20%克无踪分别为1 170元和97.5 kg,10%草甘膦分别为1 230元和124.5 kg,农民乐747分别为930元和280.0 kg。土壤和稻谷送检均未检出除草剂残留。
The technology of no-tillage and throwing rice has the advantages of high and stable yield, light section, safety and environmental protection. How to choose a convenient, cost-effective, safe and environmentally friendly biocidal herbicide is an important issue to be popularized and popularized in this technology. The test results show that the currently recommended biocidal herbicides --- 20% of no trace, 10% of glyphosate, farmer Le 747 can achieve the desired effect of weeding and stubble significant cost-saving effect. Inhaler herbicide stubble better than contact herbicide, but the contact herbicide effective quickly, according to local conditions choose to use. Tillage and throwing than tillage and throwing rice Direct savings per hectare Tillage costs and increased yields of rice, 20% of the no trace were 1 170 yuan and 97.5 kg, 10% of glyphosate was 1 230 yuan and 124.5 kg , Farmer music 747 respectively 930 yuan and 280.0 kg. Herbicide residues were not detected in soil and rice.